Results 1 to 2 of 2

Thread: 2002 8.1l efan swap

  1. #1
    Junior Member CHEVYHD496's Avatar
    Join Date
    Jul 2011
    Posts
    34

    Default 2002 8.1l efan swap

    Truck in sig, put 2006 truck efan harness in with 09 Tahoe fans. Issue im running into is having the a/c kick the fans in. I swapped out the high pressure recirculating switch for a high pressure transducer and trying to figure out how to wire it in and set ecm parameters. Supposedly the 2002 Camaros used the transducer as well? I was told to wire it up as,
    A - C2/57 = low ref for IAT
    B - C1/45 = 5v ref?
    C - C2/14 = APP sensor 3 signal
    but this way doesn't seem right?

    I believe it should be wired up as
    A - C2/56,58, or 59? low ref
    B - C1/45 = 5v
    C - C2/11 = AC HP recirculation switch signal

    Thoughts? Thank you!
    Last edited by CHEVYHD496; March 22nd, 2019 at 02:30 AM.
    02' Chevy 2500HD 496/Ally,EC/LB,4x4,3.73,AirRaid CAI,180' t-stat,Comp Cams 1.72:1 Roller-Tip rockers,SW 1 7/8 LongTube Headers
    BBK TB back in the box-for now
    New 8.1 with Raylar heads: build in progress
    U.S.M.C.

  2. #2
    Lifetime Member THEFERMANATOR's Avatar
    Join Date
    Mar 2009
    Posts
    800
    1995 GMC 2500 SUBURBAN powered by 01 DURAMAX/ALLISON, little of this, a little of that,
    DIAMONDEYE 4" exhaust, CORSA muffler, AFE stage 1 dry filter, custom tuning by me, KENNEDY single pump and pump rub kit.

Similar Threads

  1. 2002 Silverado 4.3 want to swap with V8 (help)
    By robertsschevy in forum Vortec V6/V8 Specific
    Replies: 1
    Last Post: March 11th, 2010, 03:02 AM
  2. 07 trailblazer ss efan
    By nchristian in forum E37, E38 & E67 PFI ECM's
    Replies: 4
    Last Post: November 21st, 2009, 12:00 AM
  3. Replies: 10
    Last Post: June 4th, 2009, 03:53 AM
  4. 2002 GMC Sierra w/ls1 efan settings???
    By DanaliHD in forum General (Petrol, Gas, Ethanol)
    Replies: 24
    Last Post: November 27th, 2006, 01:24 AM
  5. Efan activation
    By 04BlueSS in forum General (Petrol, Gas, Ethanol)
    Replies: 7
    Last Post: March 30th, 2005, 08:21 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •